Mixing valve



May 8, 1923.. 1,454,172

H. JUNKERS MIXING VALVE v Filed July 1, 1921 2 Sheets-Sheet 1 May 8,1923.

H. JUNKERS MIXING VALVE Filed July 1. 1921 2 SheetsSheet 2 PM... May a, 1923.

res A nueoumxans, or nine.

mxme VALVE.

Application filed July 1,

To all whom it may concern:

Be it known that I, HUGO Jtmxnns a cit-- izen of the'German Republic, residing at Dessau, Germany, have invented certain new and useful Improvements 111 M1X1I1g Valves, of which the following is a specification.

My invention refers to mixing valves and more especially to batteries of valves, cocks 1 or taps for mixin cold and hot water, such batteries being a apted for use in connection with bath-stoves, hot-water installations, washstands and the like.

In the manufacture of such batteries of 16 mixing valves, it is customary to produce the battery as a sin le casting. This construction proved rat er unsatisfactory owing to the involved passages wh1ch had to be provided in the battery casing. It was 20 frequently found that passages had been stopped up or cores displaced during the casting so that many castings had to be scrapped besides the waste ordmaril caused by the porosity of cast materials. ater on such batteries of valves were built up 'of a 'number of castings, whereby the difiiculties were somewhat mitigated, but not entirely removed. In the battery' of valves, according to this 39 invention the above stated drawbacks are entirely avoided by replacing the complicated constructional parts with their involved internal and inaccessible assages by parts of plain shape, namely va ve castings formed as simple rotation bodies, which are inserted in a battery casing of drawn or pressed sheet-metal. The casing also encloses the necessary connecting pipes so that in spite of the separation of the apparatus 40 into its constituent parts the unity of the whole is preserved and the separate parts are effectively protected against accidental damage by external influences. The separate parts can owing to their simple shapes also easily produced from sheet-metal by drawing or pressing, whereby flaws in consequence of porous places are almost excluded. ,Should they however, aecidentally occur, the pores in this constructlon would as a rule be rendered harmless, as water penetrating through them would only enter the casing and 'hence'flow into the bath or the like through the discharge spout. By

using pressed ordrawn parts instead of shape produce 1921. Serial No. 481,999.

castin the expenditure of labor in the manu acture of these batteries is limitedto a minimum. I The casing-of drawn-sheet metal is preferably formed as a simple rotation body, whereby it is possible to construct the battery of mixing valve '50, that it only presents round, easily 0 eaned surfaces, which from a sanitary point understood, however, be given any. other awing, for reasons of suitability or for the sake of appearance.

In the drawings aflixed to this specification and forming part thereof two modifications of a battery embod 'ng my invention are illustrated byway 0; example. Inthe drawings:

Fig. 1 is a longitudinal section and Fig. 2 a cross-section of a batte is particularly suitable 'for use wit stoves, while Fig. 3 is a longitudinal section and Fig. 4 a sectional front elevation along line II- of Fig. 3 of a battery which is particularly adapted to be fixed on the wall ust above the bath, and Y Fig. 5 is a longitudinal section through a bath-stove boiler fitted with'the improved battery disclosed in Figs. 1 and 2.

In-'the embodiment shown in Figs. 1. ap l 2 only a single inlet-pipe 1 is provided to which are joined the valves 2 and 3. In

is a reat advanta olf vi eg. It will i;

t at t e casin ma d by which bath- Fig. 1 only the valve 2 is visible, which in order to show the construction more clearly, has been turned through an angle of about 60 into the vertical plane through which the section has been laid. The casing 4 of the batte is produced as a drawn sheet-.

metal ho ow body through the walls of which the valve boxes 5 and 6, soldered,

"brazed or electrically welded in place of The the valves 2 and 3 extend outwards.

rotation body 4 possesses at .the top a central nipple with a port connected with the outlet chamber of the valve 2 by a tube '8,

so that the .water when the valve 2 is open shown as applied to a bath-stove.

pipe at the same time serves as hot-water pipe, so that hot water from the boiler of the bath-stove can enter through the openings 10-, 10 into the interior of the casing 4. An outlet pipe or spout 12 fitted with a cook 13 is joined to the casing 4. llhe battery is fixed upon the boiler 14 by means of a lateral branchpipe 15 extending into the casing l, which is also produced by drawing or pressing and which is provided at one side of its closed'inner end with an opening 16 which is connected by a curved tube 17 with the outlet chamber 18 of the valve 3. I I

In Fig. 5 the battery above described is Its manher of working is as follows: When the valve 3 is opened, cold water from the pipe 1 flows through the valve 3,-the tube 17 and the branch 15 into the inlet-pipe 11 of the boiler 14, and displacesthe hot water contained therein upwards, where it enters the hot-water and shower-bath pipe 19. If the cock 13 is closed, the hot water can only escape through the sprinkler of the showerbath. If however, the cock 13 is open, the water fiowsthrough the "perforations 10 into the interior of the battery casing 4 and hence through cock 13 and the spout 12 into the bath. If. colder water is desired, the

valve 2 is opened whereupon cold water from the pipe 1 flows through the valve 2 and the tube 8 into the hot-water pipe and shower-bathv pipe of the stove from where, according to the position of the cook 13, it flows either to the shower-bath spray or into the bath.

The inner construction of the wall battery in Figs. 3 and 4 is distinguished from the preceding one by two pipes 21, 22 (for cold and hot water) being provided, which are introduced into the interior of the sheetmetal casing 23, closed by the bottom plate 30. Each of the two pipes has a valve 24 or 25, respectively, fixed to its end. The valves are of similar construction to the valves 2 and 3 of Figs. 1 and 2, but their outlet ports communicate with the interior of the casing 23. At the front the casing 23 is furnished with a spout 27 into which,-if the battery is connected with a shower-bath installation, acock 28 is fitted, in which case also a socket 29, for the shower-bath pipe is provided upon the casing 23. This battery operates in the following manner: On one of the valves 24, 25 being opened cold or hot water flows into the casing 23 and hence into the bath, if the cook 28 is open, or to the showerbath,'ifcock 28 is closed.

It will be understood that I do not limit myself to the exact details of the construction or the arrangements shown, but that these may be varied within the ambit of the clalms wlthout departing from the spirit of my invention.

meagre said casing and separate pipe connections in- I serted in said casing and connected with said valves.

2. A'mixing valve battery comprising in combination, a pressed sheet metal casing formed as a rotation body, a plurality of complete screw down valves outwardly projecting through the wall of said casing and separate pipe connections inserted in said casing and connected with said valves.

3. A mixing valve battery comprising in combination, a pressed sheet metal casing, a cold water feed tube extending from below into said casing and a plurality of complete screw down valves pro ecting into said casin and connected with the upper portion of said feed tube, means for supplying hot water and means for exhausting cold water.

4. A mixing valve battery comprising in combination, a pressed sheet metal casing, a plurality of complete screw down valves outwardly projecting through the wall of said casing and a hot water feed tube adapted to ing communicating with the interior thereof,

and a pipe on said projection adapted to connect it with the hot water compartment of a liquid heater.

6. A mixing valve battery comprising in combination, a. pressed sheet metal casing, a

plurality of complete screw down valves outwardly formed as rotation bodies and projecting through the wall of said casing and separate pipe connections inserted in said casing and connected with said valves- 7. A mixing valve battery comprising in combination, a pressed sheet metal casing, a plurality of complete screw down valves outwardly formed as rotation bodies and-projecting through the wall of said casing, the body of each valve being contracted at the nd which extends into said casing, an internally threaded filling and stufling box for the valve spindle being inserted into the contracted portion, and separate pipe connections inserted in said casing and connected with said valves.

8. A mixing valve battery comprising in combination, a pressed sheet metal casing, a hot water feed tube projecting from above into said casing, a plurality of complete screw down valves projecting through the wall of said casing, a cold water feed tube connected with one of said valves and a tube connecting'seid valve with said hot Water a tube connecting one of said valves with 1 said connecting tube.

In testimony whereof I afiix my signature HUGO JUNKERS tube.

9. A mixing valve battery comprising in combination, a pressed sheet metal casing, a 5 connecting tube adapted to connect said casing with the hot water compartment of a liquid heater, a plurality of complete screw 

